/Engine/Source/Editor/BlueprintGraph/Classes/K2Node_Knot.h
Expands a node while compiling, which may add additional nodes or delete this node
virtual void ExpandNode ( class [FKismetCompilerContext](API\Editor\KismetCompiler\FKismetCompilerContext) & CompilerContext, [UEdGraph](API\Runtime\Engine\EdGraph\UEdGraph) * SourceGraph )